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Sponge fossil or just concretion?


indominus rex

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Hello, I found this last year on a mountain near Munster, a city in Alsace, and it is a marine deposit. And I found this on the mountain and I am not sure what it is. So any help with the ID would be great.

image.jpg

Life started in the ocean. And so did my interest in fossils;).

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Here is an image from the side.

image.jpg

Life started in the ocean. And so did my interest in fossils;).

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Just now, ynot said:

I think it is a mineral encrusting a sandstone or limestone.

Well that would explain the crystallization on the side.

Life started in the ocean. And so did my interest in fossils;).

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I see hackle fringe like feature on one side and dendritic mineral growth on the other, not like the specimen below which (I think) combines the two features on one side.

 

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

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